Ok. The Maestria is the Journaries which I have had on a few occasions and like quite a bit. I have never had the Amethyste unless it is a different-label Chavaroche. In France La Chavaroche is sold as La Peroline.
Confusing all of this is that almost every website says that these are all 100% Syrah wines. But I know at least La Chavaroche (and I believe the others) to be 100% Serine. (Admittedly, I believe that is officially classed as a subset of Syrah.)